How to deny access to browsers that have http.sendSecureXSiteReferrer set to true?

On an intranet site I want to prevent that Referrer information arrives at external https sites. Before log-in the site should check if this setting is set to false. If not it should give a warning, deny access and give instructions how to change the setting.

On an intranet site I want to prevent that Referrer information arrives at external https sites. Before log-in the site should check if this setting is set to false. If not it should give a warning, deny access and give instructions how to change the setting.